Stoneworking-machine.



H. .H. MERCER & D. J. OROURKE.

STONEWORKSNG MACHINE.

APPLICATION FILED JULY 15. 1908.

1,250,608. Patented Dec. 18,1917.

3 sHEET s-sHEET 2.

Inventors amwZJf 0R0urke emz yfllferger.

H. H. MERCER & D. I. O'ROURKE.

STONEWORKING MACHINE.

APPLICATION FILED JULY I5. 1908.

Patented Dec.- 18, 1917.

3 SHEETS-SHEET 3.

finry lilferger.

FM E STA ES EMEEM w HENRY MERGER ANDQDANIIEL 'J; 'onoua gn or. (inseam;w-amassing'a jAssIGNoRs, BY M 'fB OSTOE MASSACHUSETTS, A oo'iaroiaArmy;or MASSACHUSETTS;

STONEWVOBKVI-NG-MACHINE.

Speeification of Letters Patent.

To dz; whom it concern:

7 Be it knownlthat. we,.Hi n\ mrH. lWERonn and DANIEL J; ORonRKm'bothcitizens .of

the United States, and residents of Clare mont, in the countyofSullivanand State of New Hampshire,have invented an Improvement inStoneworking Machin'es, of which the following description, inconnection with the accompanying drawings, is a specification, likeletters onthe drawingsrepresenting like able trackways) andrnieans forfacilitating the adjustment or transfer of such machines about thequarry whenit becoines necessary to shift the supporttingand guidingtrackw ay or track section from one position to another for the purposeof continuing the cut already commenced or for. starting a fresh cut.

In the use of track. ehannelersit is cus-v tomaryto employ a trackwayportion comprising several sections bolted together to form a continuoustrackway of perhaps forty to forty-five feet in length; Each section .iscomposed of apair of parallel rails. rigidly united and braced, bycross-plates and stay rods. After the machine hasf cutas far as thelength of trackway used will permit', if

the cut'isto be continued farther in the same. direction,.it becomesnecessary toadvance or extend the trackway longitudinally,-so

the machine can continue the cut.

Heretofore this hasv ordinarily been accoine plished by running thechanneler over the,

more advanced track section, then unbolting the remaining section orsections from such advanced section and transferring suchremainingfsection or sections to theadvanc'ed side of the channelerwhere it is then again bolted to the oppositeend of the stationarysection beneath the channeler. If the space-J 1 V is narrow orobstructions are met,it may be I necessary to tip the entire trackway.up edge-,

wise and slide itor carry italong. T This is not only alaboriousoperation, requiring, in, addition to the men necessary foroperating the machine, also the services of men-to lift," V the trackand carry it bodily around in the quarry, it consumes fa, great deal-oftime-and materially/reduces: the efficiency of the machine as measuredby the number time.

offeet or yards which it; can cut in, a daysf Y vQur invention ceatmpiatthe re een, of means whereby the longitudinal shifting;-

ESNE, ASSIGNMENT$, r0 'sU L vAn MACHINE-KY c'oivrrAnYl" or .1 the frontmachine, but,:as practised,

of th'etrackway maybeaccomplished in a A relatively short amen withoutthe neces sityof unfastening the trackwaysections,

and furthermore, without the excessive labor and force'required forlifting or dragging,

the track bodily around "the" machine, :In

carrying out our invention we preferably empl oymeanswhereby thechanneler may be elevated sufficiently to relieve the track of-allor aportion of its weight, so tha'tithe trackcan be drawnlq gitudinallybeneath the channeler to an advanced position and 1; the cha-nneleragain loweredupon the track I for afresh cutxfSuch'. an operation canbecarried: out in a relatively short time and ordinarilyiwithout theassistance of any additional helpthan is required to operatethe machineitself.-

Our invention further contemplates the track adjustments as are requiredinordinary; quarry practice and materially reducing the necessary t1meandklabor lnvolved in handling the machine on the quarry floor; Whenit'is required to shift the trackway toa provision of means forassisting'in such other 1 position parallel to its preceding positiomiorI to any pos1t1on required forstarting afresh cutout of line With thepreceding cut, it, has. heretofore been the custom to pry or bar thetrackvvay to such fresh position with the fullfweightof the'ehannele'rrestin uponthe,

rails duringjsuch operation, ,T isin-'. variably a laborlousoperatlon,requiring the labonof several additional helpers and frequently as muchtime as is required to com? plete; the out itself,jj it being usuallyneces sary tofputfplanksroro-metal bars under the I rails'tobettenenable the men to bar the-track around with the machine resting itBy the use; of our'in'vention any required ff. 1 shifting of-thetrackway to a osition out.

of'lin witha its preceding position can be 913- I Wished ider and with br...:,. 1 a r,

y? itt ,71 1 w K 5' 50, .rinj iiiti ii i lpbe beet er edflbi referenceto-the following description when taken in connection with theaccompanying illustration showing one specific embodiment thereof,'while its s'cope'will be more particularly pointed'out 'in the appendedclaims.

In the drawings: Figure 1 shows in front elevation a track channelerembodying one form of our invention'; I

Fig. 2 is an end elevation of the channeler shown in Fig. 1;

"Fig. 3 device;

Fig. 4c is an outline plan ofthe main frame or carriage of thechanneling machine shown in Figs. 1 and 2, showing the location of theelevating devices employed;

Fig. 5 is a plan, looking down in the direction of the arrow in Fig. l,showing the elevating device;

Fig. 6 is a plan, looking up in the direc-' tion'of the arrowgl ig. a,showingthe same elevating device from below;

F g. 7 is adetail, partially in section, showing one form of elevatingdevice;

Fig. 8 is a detail in section showing the rear liolding device, and

Figs. '9, 10,11 and 12 are ti'ating the application of our invention.

Referring to the drawings and to the form of machine which we have thereshown for the sole purpose of illustrating one embodiment of ourinvention, there is-discl-osed a track channeler comprising the maintruck or frame 1 mounted upon the wheels i2, the latter adapted to movealong the renal rails 8 which, when united into connorted sections toform a portable trackdesired type, the same is herein shown forillustrative purposes, as provided with a supportingplatc 6 located atthe side of the truck and serving to' carry the upright standard 7,which may be adjustably boltedto the plate at either end of the machineor at any desired intermediate position.-

Theplate is mounted for limited angular adjustment away from thevertical plane,

there being provided for this purpose at eitherend a dependingsupporting projec- 'tion 8 fulcrumed iii a groove in the truck frame, inwhichlatter it is finally held when adjusted by means ofusual bolts andclamps (not shown). The clamps may be loosened is a detail of the frontholding.

diagrams illus- I r and the plate tipped back for angle cutting throughadjustmentof the brace rod or rods 9. V

In: the illustrated form Iof 7 machine. two .i'ianneling-units areemployed comprising pressure fluid engine. having the cylinders 10 andELL-together with cross-head guides 12 and '13 which act to guidethetoolecarrying cross-heads 14- and 15, all mounted upon and carried bya vertically adjustable frame 16. Thel'atter is gibbed to slide uponlongitudinally finished ways 17 and the up.-

7 per end of the cylinder castingis attached to the lower end of thefeed adjusting screw 18, so'tl the latter, together with the cylinders,frame and tools may be acljustably advanced or retracted relatively tothe work.

' The tools during cutting are clamped in the cross-heads'l-ql and 15,butin Figs. 1 and 2 the machine is shown with the tools removed.

Any suitable means may be employed-for feeding the tools toward thework, there being herein provided a threaded nut secured to the bevelgear 19, the latter held against longitudinal movement by the standard 7v The nut and gearare turned-bythe sprocket wheel 20 (Fig. 2), thelatterbeing movedthrough the chain 21-and engine 1-, lSOItl'lllt theengine is available to feed the tools toward or from the work,a-c-ontrolling lever the tool feed.

Power in the form of steam or other pres sure fluid maybe supplied tothe engines, either from a boiler carried upon thetruck or from anyother suitable near or remote source, from which it may be led to thepressure chamber of the engines by connections not shown.

The foregoing description serves to illus-' 22 being employed to start,stop and reverse trate a typical form of channeling machine, it beingunderstood, however, that our in;

vention is not limited to any particular construction of channeler, orother stone working machine, but that it'has extensive ap plication tovarious types and construct ons of machines in this general class.

Referring now more particularly to the improvements with which ournvention is concerned, we have provided the described. form ofchannelingmachine with one or more elevating devices, preferably upon the mainframe 'of the machine itself, by which at appropriate times and underappropriate conditions all or a portion of the weight of the machine maybe temporarily "withdrawn from the traclrto facilitate the adj ustmentof the latter; p i r I Various means may be employed for thus elevatingthe machine; but herein we have shown means upon the frame for receivingone or' more removableelevating devices, lie'rein in the form ofelevating screws. For

. the purpose of elevating the machine to permit advance of the trackwaylongitudi nally, we have provided at the rear of the machine (Fig. oneor more openings 23 formed [in the frame-work v and"provided with radialenlargements ornotches 24L Any desired number of-these' openingsmay'f beprovided and they may be located at anyf' suitable points, but hereinthey are two in number and are placed suiiiciently far apart to perm tthe elevating screws, when inserted tliereimto su'pport'the channelerinfirm equilibrium and to bring thejelevating screws outside of the limitsof the wheels 2,

and also of the rails 3, as will he scenfrom Fig. 2.

When it is desired to utilize these openings for the reception of adusting screws, or

other elevating. devices thereis inserted in each of the openings aninternally threaded sleeve or nut 25, shown in detail n Figs. '5,

6 and'7. Such sleeveis provided with radial lugs26, spaced 180 apart,\vhieh lugs readily pass through theradialnotches 24. The sleeve is thenturned .90? to the position shown in Figs. 5 and ewhem the lugs 26 abutagainst projections or, stops 27 formed upon the under side of the frameplate, there being also provided a pro ecting portion,

such asthe "collar 28, projecting from the" sleeve but sufficientlyspaced from thelugs 26 to receive the frame'plate between them; With thesleeve turned to the position shown, thecollar prevents the sleeve fromvdropping through the opening in the plate.

Preferably means, such as the pair of pro-' the threaded sleeve can bereadily n'isertcd andturned or withdrawn.

The interiorvof the sleeve is threadedt have engagement with thethreaded elevating' or jack screw 30, the latter having the perforatedhead 31 or other means by which it may be engaged to beturned forraising or loweringthe machine. M 1

V Yhenthe machine is to be elevated 'for the advance of the trackw ay,anut 01' sleeve with its screw is inserted in each ofthe outsideopenings23 and the screws turned to elevate the machine, v asrepresented in Fig."

2. If desired, one or more elevating devices of the samekind may beprovided at the opposite or cutt nq side of the channele'r, but, toavoid conipli'catio nas well as'lnterference with the adjustme'nt'of thestandardjalong the plate, we herein rely upon the adjustable frame16jtoraise or lower that sideof the machine. Forjexample, whenit desiredto elevate the machine,as described, the tools being then removed fromthe cross-heads, or) not as conditions may require, wooden blocks Fig;4, would'come sufliciently'near the cen- 32 or other suitable supportsare placed out side of the rail and beneath thelo wer edge of thel frame16, as represented in Fig.2,

whereuponthe adjustingfscrew 18; may be" ri d h r th ugh th v'f ed ng ns;

described, or manually by means of-theusual form of ratchetlever 33, tolower the frame and cons'equentlyPraiise that side of'the ma chine. I fl Vlth the machine raised, as shown in Fig.2, both the machine and itsparts. are I freefrom lnterferenceorconfhct'with'either v the rails orthe stay rods and'other connections extending between? the rails, andtheentire trackway portion; without detachment of any of "itsparts,-may-be'sli d along the quarry bottom with the expenditure ofcomparatively'little force.- The height to which the, machine iselevated is of'no particular importance so long as the rails can'begiven the necessary movement. Ordinarily one inch or lesswill sufiicel'7 "As will loe'more fully explained, it is not only des'irableitoelevate the machine to facilitate' the longitudinal adjustment of thetrack, but alsolto so elevate it u on a pivotal support independent of Ythe rails so thatat least a portion of the'weight of the machinef istaken off from the rails, and the latter may be swung around aboutthepivotal support ofthe machine.

'lVhile means may, if desired,be provided a for actually elevating themach ne free from the rails and also in perfect balance upon-its pivot,p'referably'we provide a pivotal support, adapted-torest upon the quarryfloor roughly orapproxim ately near the center of I gravity'of themachine, and raise the ma chine onlyenough to take a large or perhapsthe greater portiongof' the weight from the rails, 'while leaving {thewheel flanges still subject to lateral engagement] "with" the track.'der such conditions, even though the machine tips to oneside so as torest partly When the track is swung around un- 7 upon the-pivot and thee11gagement o-f"tlie wheel flanges with the track causes the :lat f Vter to turn the machine around as menace 1s swung about. i

havefshown, in addition to the openings 23 space" between the-rails and,preferably near the' outsi'de limits of the frame, *addi-Ttional,butlsimilar openings 34', also formed in the, frame: platel,butIlocate'dwithin the. 1 15,

roughly approximating coincidence jwith a vertical line passingjthrough.the center of 1 gravity of the machine when' 'tl1e standard located, asis ordinarily the cas'e,'at one end i or the'other of the upright frame6. I

That-lis'to ZWQ h andard and its' 'j 1, the right hand opening 34, ass'een in' terof gr'avity of tlie rnachine, so; that, with previouslydescribed in connectioiiw'ith the pe i gs 2 ,1iemahm a file-t theadjusting screw placed therein,

. r upon the traclq'itsp'rincipal weight is taken 1" V V V l In the.illustrated form of machine, we.

upon that screw alone, which latter, acting as a pivotal support,sustains, the major portion of the weight of the machine, allowing thelatter perhaps to tip slightly upon onerail or, the other, but restingthcreon with a small fraction of its total weight. With the standard atthe opposite end of the machine, the opposite opening 3%: can then beemployed for this purpose,

Referring now more particularly to Figs.

vating screws with their connected sleeves are withdrawn from theopenings23 and After completion of the grOOVe c it may be necessary toremove the trackway tothe dotted position shown for the purpose ofcutting a groove represented at Thistransfer of the trackway from theone position to the other is merely illustrative of numerous conditionswhich arise in practice with great frequency when moving the trackwayfrom ne position to the other where there exists some interveningobstruction, such as the projecting wall or corner g of the quarry. Withthe practice heretofore pre-,

vailing the operation would entail much time and labor, requiring thedetachment of one track section from the others and the barring orprying of the trackway for a considerable distance with the weight ofthe machine resting upon the rails.

With the described improvements, however, the machine can first be runto a position over the section cZ-and an elevating screw inserted in oneof the openings 3tto pivotally support the machine. The trackway withthe machine can then be swung about to the dotted line positionrepresented at h, this being accomplished with the ex penditure oflittle force by prying about the section a, the track itself acting as along lever. If irregularities in the rock are encountered, the machinecan be raised a little more, to allow the rails to pass over thelrregular places and then again lowered. The threads on the screw can bemade large I and coarse to permit this to be done quickly.

l/Vith the trackway and machine turned, the machine can then beelevated, as repre sented in Fig. 2, by inserting screws in theop'eniings 23 and by using the blocks 32 openings This permits the trackto be v dragged in the direction of the arrow and into the positionepresented by i, this also being accomplished with the expenditure ofrelatively slight power. Repetition of this operation of raising themachine, advancing the track, lowering and advancing themachineand againraising the latter and advancing the track can be carried onindefinitely, so that tho trackway can be advanced as far as necessary.With the track shifted to the position shown, however, the machine canbe placed over the section (2 and again elevated upon one of the screwsplaced in the openings 34% and then, together with the track, swung tothe dotted line. position parallel with the proposed line of cutf, By

combining these two movements, namely, the swinging adjustment of thetrack and its longitudinal movement, substantially any, required changein location can be effected. i

Referring to Fig. 10, we have illustrated the conditions which existwhere, after having cut the grooves j and 72, it becomes necessary tocut the groove Z with the standard m or the cutting side of the machineat the wrong side of the track. 7 Under such circumstances the shorttrack section (Z can be disconnected from the remaining sections, andone of the pivotal elevating. screws being utilized to raise themachine, the latter, with the track section, can be readily swung aboutthis screw as, a pivot, whereupon the track can again be attached to thesection,

leaving the, standard in the position denoted by n.

Referring to over the section cl, then elevated on oneof Fig. 11, if thegroove 0 has. been completed and it becomes necessary to cut the groove7), the machine can be run its pivotal screws, the free end of thetrack" way then swung about, as described, approximately 90 and thetrackway then barred over'to the necessary position in the fashiondescribed in connection with Fig. 9. On the other hand, if desired, thesame result can'be accomplished as represented in Fig. 12 by running themachine over track section (1,, elevatingit on the pivotal screw,swinging it to the dotted line position shown, transferring the machineto the opposite end of the trackway or over sec- 1 tion-cl and thenelevating it, as represented in Fig. 2, advancing the trackway 1n thedirection of the arrow, lowering the'machine' and advancing it to theextreme end of the trackway, again elevating the machine and finallyswinging the free end of the track- 'way to a position parallel with theproposed line of out.

These are merely illustrative instances of the ease and facility withwhich any reture o f'tiine and "labor over system' now in vogue.

As mentioned in describing 'thegpui'pose and'function of the centralelevating and pivotal screw it is, not necessary that it should belocatedfexactly at the, center of gravity 811d,'l1 1 fact, by notlocating it exactly there, the machine, while resting with its principalweight on the screw and 0a the rails, will tip down on one side or the"other tobring theflfianges'of the Wheels as they should if that alone-isrelied upon 7 to swing the machine with the track. We have accordinglyprovided auxiliary means, to be used if needed, keeping the machine tiedor fastened to the track while-leaving its weight, or the greater partof its" weight, on'the rails, I V

This'm'ay be'provided for in a variety" of ways and, as illustrative ofone such,"we have shown the machine in Fig.2 and 8' provided withattachments adapted to hook into suitable apertures in the'rail'swhen'it'is desired to swing the machine with thetracks. For the rearrailthere is provided i-(seeF igs. 4: and S) near'theouter edge of the framean aperture 35 through which there maybe inserted a grappling rod 36having a lower inturned hooked eud, 37 adapted to enter an aperturedrilled for that purpose in'the rail,

and an upper threaded end," the latter en-v gaged by the nut and washershownto hold it in position and by adjustmentto draw the machine fast tothe rail. When not, used or needed the rod is removed from the aperture.

Similarly the front rail may be engaged by a like grappling rod 38,(Figs; 3 andl) which is supported and held ina bracket 89 the latterwhen needed being adapted to be slipped over the upturned outer frontflange ofthe-fraine (as represented inFigs. and 4:). When not needed thehooked rod and bracket together can be removed from the position shown,I y

In Fig; 2 we have indicated by dotted lines the position of these twograppling rods together with the central pivot iscrew: when the'machineis supported 'on the latter for swinging movement with the track. Theholes in the rails with which the hooks engage may be drilled in eachtrack section, if desired, or only in the shortsec'tion desig Inconnection with quarry work, where the quarry floor slopes at anangle,it is extremely'difiicult to move thetrackwayjwith the weight of'themachine resting upon it, since the trackway has to be freshlyhlock'ed upfor" every new position ofthe machine invention and" one tion the trackcan be adjusted'on'an inclined floor with but little additional laborover. 7 adjustment on ailevel floor. '.Ordinari1y the I 7 ad 'ust-ments'which have heretofore rec uired a l v 7@ an additional force of men overthose employed solely "for operating the'machin'e,fcan be effectedwithout such additionalforce and with much less time, therebygreatlyincreasing the cuttingfefliciency and the commercialijeliiciencyof the;machine.

' 'It will be seen thatby the use of the relati'vely simple eX-pedientsdescribed there is elfected what is virtuallyai new method of-f rapidhandling'for the machine' -withits portable trackway overthe'quarry'ifioon While we have herein'for illustrative'purfposes shownspecifically one fform of our 11 applicationor use'jhereinof the same,but that extensive deviations may be made from thedescribed'embodiment'and apple i cation of the invention withoutdeparting from the spirit thereof.

'Havingthus de'scribedlour' invention, what 1. The combination with atransversely connected, portable. tra'ckway, "of a truck g uidedandsupported thereon,

posed outside one of the limits of the track; way for cooperatingtherewith in e1evating substantially the entireweight of the ma chine topermit longitudinal shifting of "the trackway'when' themachineis'elevated.

2. The combination with a transversely connected portable trackway,guidedfand' supported thereon, channel cutting means mounted on saidtruck and adjustable to elevate the same, power driven adjusting meanstherefor, and. means dis' particular iapplication it is tobe understoodthat the same k channel 'cutting imeaIiS mounted on said truck and ad' Qustzible to" elevate the same, and means dis of a truck posed outsideone of the limits'of the trackway for cooperating therewith in elevatingsubs't'an'tially the entire weight'of the rna chine to. permitlongitudinal shifting of the trackwaywhen the machine is elevated. "3. Atrack channeling machine or the like hav ng a framefcuttlng means, meansfor engaging with a suitable'trackway, elevatmg means for elevating themachine to relievefthe track of; the full weight thereof, comprising anelevating screw and a thread ed screw-receiving member, the latterfha eing 'one'or'more radial lugs and also afpro jeoting portionlongitudinally: spaced there-f from, and means upon the machineframe tohold said elevatingmeans, comprising an" 1 opening therelnadapted topass said lug "or lug'sbut n'otsaid projecting portion, and

.m'eans'upon the 'f-rame to permit the partial to a position Where itswithdrawal from the opening is prevented.

1 4. A track channeling machine or the like,

having wheels for engaging with asuitable track-way, an elevating devicefor pivotally supportingsaid machine to relieve the tracl way, and meansfor holding the machine to the track-Way to cause the swinging of thetrack also to turn the machine.

5; The combination with a portable trackway comprising united sections,each section having parallel rails connected by cross members, of astone. Working machine supported and guided by the trackway, cuttingmeans, feeding means for feeding the machine along the trackwaysimultaneously with the operation of the cutting means, an elevatingdevice operable outside thelimits of the trackway for elevating themachine whereby the trackway can be longitudinally adjusted beneaththermachine, and means operable between the rails of the trackway alsofor elevating the machine while leaving the same engaged with thetrackway but in pivotal relation thereto whereby the machine may beturned with the turning of the trackway. v

6. The combination with aportable track- 'way, of a truck having Wheelssupportedand guided by said trackway, channel-cutting means supported atthe side of said truck and mounted for longitudinal adjustment thereon,feeding means for feeding said truck along said trackway simultaneouslywith the operation of thecutting means, and

truck-elevating means comprising a plurality of elevatin devicesoperable outside of the limits'of the trackway on one side thereof andWithin the longitudinal limits of the truck for elevating the truckwhereby the trackway can be longitudinally adjusted beneath the truck,said truck having provision for receivin an elevatingdevice between therails of the 'trackway at different points within the longitudinallimits of the truck fill and approximately at the centers of gravityof'the machine in the difierent positions of longitudinal adjustment ofsaid channel-cut ting means, and a pivotal elevating device adapted tooperate ateither of such points adjacent to either center of gravity forelevating and pivotally supporting the truck.

7. The combination with a portable trackway, of a truck havin wheelssupported and guided by said trac way, channel-cutting meanssupported atthe side of said truck and mountedv for longitudinal adjustment thereon,feeding means for feeding said truck along said trackway simultaneouslywith the operation of the cutting means, and truck-elevating meanscomprising a plurality of elevating devices operable outside of thelimits of the trackway on one side thereof and within thelongitudinallimits of the truck for elevating the truck whereby the trackway can belongitudinally adjusted beneath the truck, said truck having pro deviceadapted to operate at eitherof such points adjacent to either center ofgravity for elevatlng and plvotally supporting the truck, and means forsecuring said trackway to said truck whereby the trackway may be swungwith the truck about the pivotal point of the latter. v

V 8. The combination with a portable trackway, of a truck having wheelssupported on and guided by said trackway, channel cutter actuating meanssupported at the side of the truck, feeding means for feeding the truckalong the trackway simultaneously with the operation of thechannel-cutting means, and truck-elevating instrumentalities comprisingmeans for depressing said channel-cutter ac tuating means to cause thelatter to elevate the truck on one side, and elevating means operableoutside the limits of the trackway' on the other side of the trucktoelevate the truclron the latter side, whereby the track I way can belongitudinally adjusted beneath the truck. a A V 9. The combination witha portable trackway, of a truck having wheels supported and guided bysaid trackway, channel-cutting 7 side of the limits of the trackway atdifferent points longitudinally of the truck on one side, and a pivotalelevating device operable between the rails of the trackway adjacent tothe center of gravity of the machine in any position of adjustment ofthe cutting means longitudinally of the truck.

10. The combination in an apparatus of the class described, of achanneler trackway, a truck supported track channeler movable thereonand including channel'cuttingmechanism at one side of said truck andtrack way, and a single elevating means on the axis of whichsaidchanneler is rotatable for elevating and supporting the latterpivotally between the rails of the trackway to permit the machine to vbeturned. Y

11. The combination in an apparatus of the class described, of atrack'channeler hav ing flanged Wheels for engaging a suitable channelertrackway and supporting the chine thereon, a frame having cuttingmechoperation of the cut-ting means, truck elevating means comprismg aplurality of elevat-n anism for cutting groove or channel at the side ofthetrackway, and pivotal support-' ing means to elevate said channelerrelative to the trackway and free the latter from the full weightthereof, while permitting engagement between the wheel flanges and trackand-thereby permitting the channeler to be turned about its pivotalsupport when r the track is moved angularly.

12. Thevcombination in an apparatus of the class described, of atruckhaving supporting Wheels, channel cutting means supported at theside ofsaid truck and mounted v for longitudinal adjustment thereon, feedingmeans for feeding said truck along a suitable trackway simultaneouslywith the operation of the cutting means, and truck-elevating meanscomprising a plurality of elevating devices operable outside the limitsof the ed to operate at either of said points adjacent either center ofgravity for elevatlng and pivotally supporting the truck.

13. The combination in an apparatus of the class described, of a truckhaving s'up-' porting wheels, channel cutting means supported at theside of the truck and mounted I for longitudinal adjustment thereon,feeding means for feeding-said truck along a suitable trackwaysimultaneously with the ing devices operable. outside the limits of thetrackway on one side thereof and within the longitudinal limits of thetruck for elevating the truck whereby the trackway can be longitudinallyadjusted beneath the truck, said truck having provision for receiving anelevating device between the rails of the trackway at different pointswithin the longitudinal limits of the track and approximately at thecenters of gravity of the machine in the different positions oflongitudinal adjustment of the said channel cutting means, apivotal-elevating device adapted to operate at either of such pointsadjacent either center of gravity for elevating and pivotally supportingthe truclnand means for securing the trackway to the truck where-' bythe trackway may be swung with the truck about the pivotal point of thelatter.

Copies of this patent may be obtained for five cents each, by addressingWashington, D. C.

; 14. The combination in an apparatus the class described, of a truckhaving supporting wheels, channel cuttlng means supported at the side ofsaid truck and mounted for longitudinal adjustment thereon, feedingmeans for feeding said truck along a suitable trackway simultaneouslywith the oper ation of the cutting means, means operable outside thelimits of the trackway for elevating the truck-whereby the trackway canbe 'longitudinally 'adjusted beneath the truck,

a pivotal elevating device adapted to op'erate between the rails of thetrackway, and

means for securing the trackway to said truck whereby the irackway maybe swung with the truck about the pivotal point of the latter. 7

15. The combination in an apparatus of the class described, of a truckhaving supporting wheels, channel cutter actuating means supported atthe side of the truck,

. feeding means for feeding the truck along a suitable trackwaysimultaneously with the operationof the channel cutting means, and

truck elevating "instrumentalities com'pris- 7 ing means for depressingsaidchannel cutter actuating means to cause thelatter to elef 'vate thetruck on one side, and elevating means operable outslde-the llmlts 'ofthe trackway onthe other-side of the truck to elevate the truck on thelatte'rside, whereby the track'way can be longitudinally adjustedbeneath the truck.

16. The combination in an apparatus of the class described, of a truckhaving supportingwheels, channel cutting means supported at the side ofsaid truck and mounted for longitudinal adjustment T thereon, feed-' mgmeans for feeding said truck along a suitable trackwaysimultaneouslyjwith the operation of the cutting means, and truckelevating instrumentahtles comprisinga plu rahty of elevating ClBVlCGSoperable outside the limits of the trackway at different points 1longitudinally of the truck on one side, and

a pivotal elevating device operable between a the rails of the trackwayadj acentthe center of gravity of themachine in, any position ofadjustment of the cutting means longitudinally of the truck.

In testimony whereof, we have signed our names to this specification, inthe presence of two subscribing witnesses.

HENRY H. MERGER.

DANIEL J, OROURKE.

theflcommissioner of laten'ts, I

